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Headset Buddy: VoIP 2.5mm Headset to RJ9/RJ10 CISCO Phone Adapter (PH25-RJ9Cisco)

3.2 out of 5 stars 72 customer reviews
| 16 answered questions

List Price: $14.97
Price: $12.95 & FREE Shipping on orders over $49. Details
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  • Convert 2.5mm plug to CISCO phone single 4P4C RJ9/RJ10 headset plug
  • Save money by buying standard phone headsets to use with your Cisco phone headset jack
  • Reduce clutter with single headset
  • Does not work with RJ11 jack, which is wider than your handset or headset jack (6 positions vs. 4). RJ11 jack is what is in the wall. RJ9, RJ10, RJ22 are what is on your phone handset or headset.
  • Works only with Cisco and Ativa phones with headset jacks
2 new from $12.95 3 used from $11.01
$12.95 & FREE Shipping on orders over $49. Details In Stock. Sold by HeadsetBuddy (Long Tail Products) and Fulfilled by Amazon.

Frequently Bought Together

  • Headset Buddy: VoIP 2.5mm Headset to RJ9/RJ10 CISCO Phone Adapter (PH25-RJ9Cisco)
  • +
  • Panasonic KX-TCA60 Hands-Free Headset with Comfort Fit Headband for Use with Cordless Phones
  • +
  • Panasonic KX-TCA400 Over The Head Headset
Total price: $35.91
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Technical Details

  • Brand Name: Headset Buddy
  • Model Number: 01-PH25-RJ9Cisco
  • Caller Identification: N

Product Description

Use your PC headset with your Cisco IP phone

Why buy an expensive headset just for your Cisco IP phone?Use the Headset Buddy Adapter and your existing 2.5mm phone headset with Cisco VOIP phones that have a headset jack.

Save money by using a 2.5mm headset with your Cisco office phone.

Specs: This amazing adaptor converts the standard phone headset 2.5mm plug to a standard RJ9, RJ10, or RJ22 Cisco phone headset plug, allowing you to use your favorite phone headset with your Cisco office phone. The adapter outputs binaural sound for stereo headsets, meaning you will hear sound out of both ears. The adapter cable is approximately five inches long. All Headset Buddy products are EU RoHS Compliant.

Here are what customers are saying about our products:

Example Compatible Phones:

This list is not all inclusive. Please look up the specifications on your specific phone to see if it has a RJ9, RJ10, or RJ22 headset jack. If the Headset Buddy doesn't work with a model on this list we will be happy to refund 100% of your purchase plus pay for return shipping.

Cisco IP phone headset jack for models: 7931G, 7940, 7941G, 7942G, 7945G, 7960, 7961, 7961G, 7962G, 7965G, 7970, 7971, 7971G, 7975, 7975G, 7975G, 7965G, 7945G, 7962G, 7942G

Incompatible Cisco phones:
Cisco 7902, 7905, 7910, 7911, 7912, 7920, 7921

Please let us know if you find more compatible phones or incompatible phone models.

Product Information

Product Dimensions 4 x 1 x 6 inches
Item Weight 1.6 ounces
Shipping Weight 1.6 ounces (View shipping rates and policies)
ASIN B004FVFJKG
Item model number 01-PH25-RJ9Cisco
Customer Reviews
3.2 out of 5 stars 72 customer reviews

3.2 out of 5 stars
Best Sellers Rank #990 in Electronics > Accessories & Supplies > Audio & Video Accessories > Connectors & Adapters
Date first available at Amazon.com December 10, 2010

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Important Information

Seller Warranty Description
1 year warranty

Customer Questions & Answers

Customer Reviews

Top Customer Reviews

Verified Purchase
I'm not that tech savvy so did not know that most regular headphones (I prefer two ear buds vs. one) have 3.5 mm pins. So, on top of getting this CISCO phone adaptor, I had to also purchase (at Fry's Electronics for $5) a 2.5 mm to 3.5 mm w/ microphone adaptor.

The combo of CISCO phone adaptor+2.5mm-3.5mm w/ microphone adaptor+regular headphones = clear sound & voice for CISCO IP 7942.
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Verified Purchase
I was really hoping this would be the answer to my problem. We got new phones at the office and this was the only way I would be able to use my current headset - which I love. Unfortunately, when I plug this into the phone and then plug my headset in, it drastically lowers the volume. My headset has speaker and volume control, but it's not enough. I can hear my callers, but they can't hear me well at all. Not to say that this reflects poorly on the product itself, because it does work - just not the way I need it to for my callers.
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Verified Purchase
I have heard enough complaint from others who bought different adapters that doesn't work. Luckily, this one works and my a lot of my co-workers have been buying it. Keep in mind, different IP phone has different requirement. My company uses CISCO 5000 series and works. Another note is the headset, more straight-forward/simple the better the sound quality and I uses the cheap Motorola cellphone earplug that was abandoned since the introduction of bluetooth. The combination works perfectly.
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Verified Purchase
I am severely hard of hearing and wear bilateral hearing aides. I bought this product to connect my silhouette to my phone at work. It works but I could not understand what the person was saying and needed to amplify the sound. I tried attaching my in-line amplifier that I use for the handset but it didn't work.
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Verified Purchase
This is perfectly high quality but be aware that this DOES NOT FIT IPHONE EARBUDS OR ANY OTHER STANDARD SMARTPHONE HANDSFREE EARBUDS. This fits the 2.5 mm sets and most modern headphones and such are 3.5 mm.
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Verified Purchase
Doesn't work that great. Tried converting my RJ9 accepting phone to use an old 2.5mm headset. Sound quality is worse than just using 2.5mm alone. It works, but not usable. Also seems quite expensive for what it is. I went the RJ9 to 3.5mm instead to use a better quality headset and it works a lot better.
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Verified Purchase
I bought this product when I got a phone headset for work not realizing that my phone did not have a standard headphone jack. I use a CISCO IP Phone 7960 Series and a Plantronics M214C headset. Warning 2.5mm jack is NOT the same as an iPhone jack (3.5mm)
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Verified Purchase
This product has survived a few weeks of being shuffled around on my desk while connected to my phone. It would be nice if it were longer, but as an intermediate adapter it easily permits me to use an inexpensive 2.5 mm headset on my Cisco IP phone.
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